Mold



Jan. 19 1926. Y

1 D. E.'HENNESSY MOLD Original Filed August 19, 1921 2 Sheets-Sheet 1 DANIEL. E. HENNE 5 BY INV NTEIH D'HNEY Jan. 19 1926. 1,570,147"

D. E. HENNESSY I MOLD ori na Fil ed August 19. 1921 2 Sheets-Sheet 2 DANIEL E. HENNEEEY I 40 rinis Patented Jan. 19, 1926.

UNITED STATES 1,510,141 PATENT OFFICE.

DANIEL EDWARD HENNESSY, OF MILWAUKEE, WISCONSIN, ASSIGNOR, BY MESNE ASSIGNMENTS, TO THE FISK RUBBER COMPANY, OF CHICOPEE FALLS, MASSACHU- SETTS, A CORPORATION OF MASSACHUSETTS.

MOLD.

Application filed August 18, 1921, Serial No. 498,591. Renewed February 27, 1924.

'To all whom it may concern:

NESSY, a citizen of the United States, and a resident of Milwaukee, in the county of Milb waukee and State of Wisconsin, have invented certain new and useful Improvements in Molds, of which the following is 'a specifica- .tion. 1

' My invention relates to molds and the principal object of my invention is to provide a new and improved mold. In the drawings accompanying this specification and forming a partthereof I have'shown, for purposes of illustration, one form which my invention may assume. In these drawigure 1 is a verticalsection of a heater showing this illustrative embodiment of my invention,

Figure 2 is a plan view of the mold shown in Figure 1, v

Figure 3 is a section on the line 3-3 of Figure 2, while Figure 4 is. a section similar to Figure 3 showing an alternative form of mold.-

In the drawings I have shown a heater 11 comprising a shell 12 supportmg a top ring 13, a ram 15 supporting a table 16 which carries an annular plate 17, and a heater cover 14 carrying a similar plate 18. Between the plates 17 and 18 are clamped a plurality of molds 19.

Each of the molds 19 is provided with a plurality of vents 20 terminating in a channo] 21 out in thetwo halves of the mold and closed when the mold is closed, and with two series of side channels 22 each terminating in a channel 23. The u per face 24 of each mold 19 is provided wit a pair of packing 25- fianking the channel 23 thereof and eac comprising a dovetail portion 26 adapted to seat in a corresponding depression 27 in the mold 19 and a projecting portion 28 adapted to engage the surface of an abutting body. The plate 17 of the table 16 is provided with slmilar rings.

In carrying out certain processes of vulcanization wherein pressure is ap lied to the interior of the article during vu canization it is necessary to protect the vent holes from the action of this pressure and this is ordinarily done by confining the pressure within a duct. find that the same result may be accomplished by segregating the are segregated upon closing of the mold and the si de vents 22 are segregated by superimpos1t1on of the molds upon the plate 17 and of the top plate 18 upon the top mold 19. Accordingly, it will be apparent that the a' paratus herein disclosed accomplishes t e se regation of the vents.

nder certain conditions it may be desirable to construct. each mold as a separate unit and in such case the side vents 22 may lead lnto channels 29 similar to the channels 23 but each provided with shoulders 30 adapted to receive a packing rin 31 which acts to effectively close the open ace of the channel 29.

While I have described herein one embodiment of my .lnVBIllJlOIl and an alternative therefor the disclosure herein is illustrative only and my invention is not limited thereto.

I claim:

1. In combination, a mold provided with vents opening through a face thereof, and means adapted to segregate said vents.

2. In combination, a mold provided with vents openmg through a face thereof, and means adapted to form a chamber over the vent openings to thereby segregate the vents.

3'. In combination, a mold provided with vents opening through a face thereof, and a plate adapted to overlie the openings of said vents.

4. In combination, a mold provided with vents opening through a face thereof, and a plate adapted to overlie the openings of said vents and channelled 't-oprovide a closed chamber into which said vents communicate.

5. In combination, a mold provided with vents openings into a channel in one face thereof, and a plate adapted to overlie said channel to thus form said channel into a closed chamber.

6. In combination, a pair of molds each provided with vents opening through the adjacent face thereof, and means whereby the space into which said vents openis formed into a chamber.

7 In combination, a mold provided with vents opening into a channel in one face thereof, and a secondmold having vents opening into one face thereof and adapted to be superimposed upon said first mold so that the vents open into the channel of the I adapted to close said channel.

9. In combination, a mold provided with vents opening through an exterior surface thereof, and means adapted to segregate said vents.

10. In combination, a mold provided with vents opening throu h an exterior surface thereof, and means a apted to form a chamber over the vent openings to thereby segregate the vents.

11. Incombination, a mold provided with vents opening through an exterior surface thereof, and aplate adapted to overlie the openings of said vents and channelled to provide a closed chamber into which said vents communicate. I

12. In combination, a mold provided with vents opening into a channel. in an exterior surface thereof, and a plate adapted to overlie said channel to thus form said channel into a closed chamber.

13.111 combination, a pair of molds each provided with vents opening through the adjacent exterior surface thereof, and meansv whereby the space into .which said vents open is formed into a chamber.

14. In combination, a mold provided with vents opening into a channel in one exterior surface thereof, and a second mold having vents opening into one exterior surface thereof and adapted to be superimposed upon said first mold so that the vents open into the channel of the first mold and said second mold closes said channel.

15. A mold having vents openinginto an exterior channel in one exterior surface thereof, and a plate adapted toclose the said channel.

In testimon whereof I have signed my.

name to the a ove specification. 

